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Embedding user-defined indexes in Apache Parquet

news.ycombinator.com Unknown 2026-02-02 08:29:02

Embedding User-Defined Indexes in Apache Parquet Files Posted on: Mon 14 July 2025 by Qi Zhu, Jigao Luo, and Andrew Lamb It’s a common misconception that Apache Parquet files are limited to basic Min/Max/Null Count statistics and Bloom filters, and that adding more advanced indexes requires changing the specification or creating a new file format. In fact, footer metadata and offset-based addressing already provide everything needed to embed user-defined index structures within Parquet files w

Topics: distinct file files index parquet

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James Gunn's 'Superman': Does It Have Post-Credits Scenes?

cnet.com See Full Bio 2026-02-02 06:02:00

James Gunn's Superman movie swooped into theaters Friday, offering thrilling battles, big-hearted heroes and an amusingly untrained canine sidekick. You might want to see the superhero epic if you're into other films written and directed by Gunn (such as Suicide Squad and Guardians of the Galaxy) or want to catch the cinematic start to the new DC Universe. Superman stars Rachel Brosnahan as Lois Lane, Nicholas Hoult as Lex Luthor and David Corenswet as the Man of Steel. The movie isn't an origi

Topics: gunn movie post scene superman

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MLB Home Run Derby 2025: Participants, Format, Start Time and How to Watch Tonight for Free

cnet.com See Full Bio 2026-02-02 08:12:23

The Major League Baseball season has reached its midpoint. The game's brightest stars are in Atlanta for the All Star Game on Tuesday, but up first is the Home Run Derby tonight. Eight sluggers will duke it out for the title of Home Run Derby champ. The Derby gets underway tonight at 8 p.m. ET (5 p.m. PT) tonight on ESPN and ESPN2. Below, we'll outline the best live TV streaming services to use to watch live wherever you are in the world. The 2025 Home Run Derby and All Star Game will take pla

Topics: derby home run streaming vpn

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Cognition, maker of the AI coding agent Devin, acquires Windsurf

techcrunch.com Maxwell Zeff 2026-02-02 10:51:29

Cognition, the startup behind the viral AI coding agent Devin, announced in a blog post on Monday that it has signed a definitive agreement to acquire AI coding startup Windsurf. The announcement comes just days after Google hired away Windsurf’s CEO Varun Mohan, co-founder Douglas Chen, and research leaders in a $2.4 billion deal, a reverse-acquihire that left the rest of the startup’s 250-person team behind. Google’s deal occurred just hours after OpenAI’s $3 billion offer to acquire Windsurf

Topics: ai cognition google startup windsurf

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Best Buy is restocking the Nintendo Switch 2 on July 17

engadget.com Unknown 2026-02-02 15:46:37

If you've been hunting high and low for a Nintendo Switch 2 , then get ready to visit your local Best Buy on July 17 . The electronics retailer will be restocking the handheld in all of its stores to coincide with the release of Donkey Kong Bananza , the first 3D Donkey Kong game in almost 30 years. The Nintendo Switch 2 has been one of the hottest launches of the summer, and it remains in short supply due to high demand. Even the Amazon listing for the Switch 2 is available only by invitation

Topics: best buy donkey kong switch

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I stopped buying ice after testing this smart cooler - and it's hit an all-time-low price

zdnet.com Maria Diaz 2026-02-02 15:19:44

ZDNET's key takeaways The Anker Solix EverFrost 2 is available for $1,349 but currently on sale. This cooler works as a portable mini-fridge, with dual-zone cooling and the capacity to freeze or refrigerate. The Anker Solix EverFrost 2 is bulky and heavy, and it only comes with one battery so you have to purchase the second to reach the full 3.2 day capacity. View now at Best Buy View now at Amazon more buying choices The Anker Solix EverFrost 2 58L electric cooler is typically $1,100, but it

Topics: anker battery cooler everfrost solix

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Meta CEO Zuckerberg says first AI data supercluster will come online in 2026

cnbc.com Ashley Capoot 2026-02-02 20:32:42

Meta CEO Mark Zuckerberg on Monday said he plans to invest "hundreds of billions of dollars" into artificial intelligence compute infrastructure, and that Meta plans to bring its first supercluster online next year. A supercluster is a large, complex computing network that's designed to train advanced AI models and handle their workloads. "Meta Superintelligence Labs will have industry-leading levels of compute and by far the greatest compute per researcher," Zuckerberg wrote in a Facebook pos

Topics: compute meta said supercluster zuckerberg

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Evidence Grows That Tripping on Shrooms Might Increase Your Lifespan

futurism.com Unknown 2026-02-01 18:03:03

Image by JASON CONNOLLY/AFP via Getty Images Studies In a new study, scientists have uncovered evidence that magic mushrooms just might be an effective anti-aging treatment. Published in the Nature Partnering Journal Aging, a new paper by researchers at Emory and Baylor's medical schools suggests that psilocybin, the active compound in psychedelic mushrooms — there are a range of species that produce it, but the best known is probably Pisolocybe cubensis — might extend the lifespans of both mi

Topics: aging mice psilocybin psychedelic study

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Malicious VSCode extension in Cursor IDE led to $500K crypto theft

bleepingcomputer.com Unknown 2026-02-02 15:26:34

A fake extension for the Cursor AI IDE code editor infected devices with remote access tools and infostealers, which, in one case, led to the theft of $500,000 in cryptocurrency from a Russian crypto developer. Cursor AI IDE is an AI-powered development environment based on Microsoft's Visual Studio Code. It includes support for Open VSX, an alternative to the Visual Studio Marketplace, that allows you to install VSCode-compatible extensions to expand the software's functionality. Kaspersky re

Topics: extension install kaspersky remote source

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This sunrise alarm clock helped improve my sleep routine

zdnet.com Allison Murray 2026-02-02 18:58:41

ZDNET's key takeaways The Hatch Restore 3 retails for $170 and comes in three neutral colors. It has a new design with bigger buttons and an upgraded app with more bedtime routines. The device is rather large, and you'll have to pay for a monthly subscription to utilize the app's whole experience. $169.99 at Amazon $169.99 at Target $169.99 at Best Buy more buying choices As a tech reporter, I've tested numerous products over the years, but one of my all-time favorites is the Hatch Restore su

Topics: app hatch new restore sleep

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Two guys hated using Comcast, so they built their own fiber ISP

news.ycombinator.com Unknown 2026-02-02 18:45:32

Samuel Herman and Alexander Baciu never liked using Comcast's cable broadband. Now, the residents of Saline, Michigan, operate a fiber Internet service provider that competes against Comcast in their neighborhoods and has ambitions to expand. "All throughout my life pretty much, I've had to deal with Xfinity's bullcrap, them not being able to handle the speeds that we need," Herman told Ars. "I lived in a house of 10. I have seven other brothers and sisters, and there's 10 of us in total with m

Topics: comcast fiber herman said speeds

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Embedding User-Defined Indexes in Apache Parquet

news.ycombinator.com Unknown 2026-02-02 20:29:02

Embedding User-Defined Indexes in Apache Parquet Files Posted on: Mon 14 July 2025 by Qi Zhu, Jigao Luo, and Andrew Lamb It’s a common misconception that Apache Parquet files are limited to basic Min/Max/Null Count statistics and Bloom filters, and that adding more advanced indexes requires changing the specification or creating a new file format. In fact, footer metadata and offset-based addressing already provide everything needed to embed user-defined index structures within Parquet files w

Topics: distinct file files index parquet

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Japanese Grandparents Create Life-Size Totoro with Bus Stop for Grandkids (2020)

news.ycombinator.com Sonya Harris 2026-02-02 20:09:14

Totoro is a hallmark character created by Studio Ghibli, Japan's beloved animation studio. The plump bodied, wide smiling magical creature’s most iconic image is that of him waiting for an unusual bus in the rain. The magic of that scene (featured in the 1988 film My Neighbor Totoro) has been a spark of nostalgia, imagination, and inspiration for a variety of creatives. Such is the case for a pair of grandparents in Takaharu, Miyazaki Prefecture, Japan. The couple—who is in their 70s—decided to

Topics: couple post sculpting studio totoro

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Superheroes Are Spending 2025 in Their Reboot Eras

gizmodo.com Justin Carter 2026-02-02 20:00:45

There have been a lot of superhero stories told over the decades from DC and Marvel, but it’s been a while since things lined up quite like this. Of 2025’s wave of cape movies and shows, several of them—from Thunderbolts* and Your Friendly Neighborhood Spider-Man to the just-released Superman and incoming Fantastic Four: First Steps—are reboots in some form or another. In the comics these characters originated from, reboots happen on a regular basis, and their movie counterparts are no strangers

Topics: audiences comics just like superman

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Humans Are Starting to Talk More Like ChatGPT, Study Claims

gizmodo.com Gayoung Lee 2026-02-02 20:45:04

For better or worse, the rise of ChatGPT as a writing tool, search engine, or conversational buddy has considerably changed how we communicate with each other and with technology. At the same time, ChatGPT’s widespread use has also sparked numerous online debates about whether it’s possible to spot AI-created content by looking at certain cues, like the em dash. But new research suggests that such AI cues might become increasingly harder to pick out—because we’re starting to speak more like Cha

Topics: ai chatgpt gpt study words

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GM’s Final EV Battery Strategy Copies China’s Playbook: Super Cheap Cells

wired.com John Voelcker 2026-02-02 20:21:12

General Motors has just announced its latest and likely final piece in what now appears to be a three-pronged cell-chemistry strategy to power GM’s lineup of a dozen EVs through the end of the decade and beyond. GM has stated today it will build low-cost lithium iron phosphate (LFP) battery cells in Spring Hill, Tennessee, starting in late 2027. Conversion of cell lines to produce that chemistry will begin later this year. The cell plant at the Spring Hill complex is owned and operated by Ultiu

Topics: cell cells chemistry gm lfp

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GM to challenge China’s LFP monopoly with upgraded battery factory

techcrunch.com Tim De Chant 2026-02-02 20:04:11

GM said Monday it is working with joint venture partner LG Energy Solution to upgrade its Ultium battery factory to make lithium-iron-phosphate cells for the automaker’s low-cost EVs. The factory’s overhaul will give LFP production in the United States a significant boost. Despite being invented and commercialized in the U.S., today the vast majority of LFP cells are currently made in China. The $2.3 billion Spring Hill, Tennessee, battery plant is part of the Ultium Cells LLC joint venture be

Topics: battery cells chemistry gm lfp

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Xbox Ally X and Ally leaked prices make the Steam Deck sound like a steal

androidauthority.com Unknown 2026-02-03 00:14:59

TL;DR The prices for Xbox’s upcoming handhelds may have leaked. The most expensive model may cost €899, while the cheaper model is said to be €599. While the metadata was scraped from ASUS’ website, these prices could just be place holders. Earlier this year, leaks suggested Xbox was partnering with ASUS to release a handheld under the Xbox brand. A month ago, the company finally confirmed the collaboration during its summer showcase, unveiling two models: the ASUS ROG Xbox Ally X and ROG Xbo

Topics: ally asus cost prices xbox

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One of the most versatile cameras I've used is not from Sony or Canon and it's on sale

zdnet.com Ant Pruitt 2026-02-03 00:42:08

Ant Pruitt/ZDNET At Best Buy, the Insta360 X4 Action Camera is $150 off right now. ZDNET's key takeaways The Insta360 X4 Its accommodating accessories, including the Invisible Selfie Stick and Utility Frame, make it a fantastic camera for most environments. Just be aware of scratching the lens as both sides protrude out. Most talk in tech today revolves around AI in some shape or form, but not too long ago, VR and 360-degree video were the hot topic. When it comes to 360-degree video, the

Topics: 360 camera insta360 video x4

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I invested $50 in Bitcoin in 2022 - here's what it's worth now after an eye-popping rally

zdnet.com David Gewirtz 2026-02-03 00:54:00

ZDNET Welcome to Hot Bitcoin Summer, 2025 Edition. It's July 14, and the cryptocurrency is on fire. Turns out that when the President of the United States is bullish on a fake currency, it takes off. Then, when the US Congress declares "crypto week," cybercurrency speculators get that warm, squishy feeling that makes them think good things are about to happen in their imaginary world of bits as bucks. Also: How AI can help you manage your finances (and what to watch out for) In honor of all

Topics: bitcoin david investment value zdnet

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NetBox Labs secures $35M as demand for network infrastructure management surges

news.ycombinator.com More This Author 2026-02-03 00:43:21

The platform’s technical foundation centers on modeling infrastructure relationships in detail. The NetBox model encodes realistic relationships, such as an IP address’s provision on an interface, where the interface is on the switch, and where the switch sits in a rack. In addition, NetBox Labs has expanded the core platform with complementary products that address operational pain points while leveraging the central data repository. NetBox Discovery provides automated network device and serv

Topics: assurance capabilities discovery infrastructure netbox

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Lenovo Legion Go S: Windows 11 vs. SteamOS Performance, and General Availability

news.ycombinator.com Unknown 2026-02-02 23:47:54

We have already covered it ahead of its launch: the Lenovo Legion Go S is a high-end handheld PC that comes in two flavors: a SteamOS variant and a Windows 11 version. Today, we are going to look at the performance across both versions, based on multiple benchmarks collected from different sources on the webs. The Lenovo Legion Go S: SteamOS for the Masses Both versions of the Legion Go S use a similar AMD processor (Z2 Go at 4c/8t) and a 55.5 Wh battery, but the SteamOS model is priced about

Topics: legion lenovo steamos version windows

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Lightning Detector Circuits

news.ycombinator.com Unknown 2026-02-03 00:07:31

Here's a version I built into a "fake" book I found at an art store. The copper PCB is connected to the circuit ground to act as a counterpoise for the antenna, increasing sensitivity. The lightning bolt was cut with a sharp knife then filled with blue-dyed epoxy. The antenna connects to the pin jack. I used a cheap flashlight head for the LED - I used too much blue dye in the epoxy so I need a bright flash! The image below is with an LED and no pot (but with the 150k resistor added). I made se

Topics: just lightning power resistor transistor

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Strategies for Fast Lexers

news.ycombinator.com Unknown 2026-02-02 23:42:54

In this blog post I’ll explain strategies I used to make the purple garden lexer really fast. purple-garden is an s-expr based language I am currently developing for myself. Its my attempt at building a language I like, with a battery included approach, while designing it with performance in mind. This doesn’t mean all approaches are feasible for your use case, architecture and design. I tried to bring receipts for my performance claims, so watch out for these blocks at the end of chapters: I

Topics: cc input pos str string

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Look Inside the Cinematic Legacy of ‘Godzilla’ In This Stunning New Book

gizmodo.com James Whitbrook 2026-02-03 00:00:08

Last year marked the 70th anniversary of the first Godzilla, and Toho has spent much of that 70th year going all-in to celebrate the King of the Monsters. From more movies, to theme park rides, to plenty of crazy merch, it’s been a great time to be a Godzilla fan, and it’s about to be even better. Ahead of its release this week, io9 has an exclusive look inside Godzilla: The First 70 Years, a titanic celebration of the last seven decades of kaiju moviemaking. Published by Abrams and written by

Topics: 70 godzilla history scenes years

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Every Best Buy store will have Nintendo Switch 2 consoles on July 17th

theverge.com Brandt Ranj 2026-02-03 00:51:32

It’s been over a month since the Switch 2’s record-breaking launch, and the console is becoming easier to get with each restock. However, if you’ve been waiting for the launch of Donkey Kong Bananza to buy one, Best Buy sneakily announced that its next in-store restock will happen Thursday, July 17th, the game’s launch day. Every Best Buy location will have consoles in stock. Best Buy’s in-store restock announcement doesn’t mention whether both the standalone console ($449.99) and Mario Kart Wo

Topics: best buy console deals restock

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Explore 20 years of Mac UI design through emulations of a single app

9to5mac.com Ben Lovejoy 2026-02-03 05:16:19

What’s a Mac app that was included on the very first Macintosh back in 1984 – long before the internet – and still exists on today’s machines, albeit with a different name? Designer and author Marcin Wichery has not only traced the first 20 years of development of that app, but has also included emulators that let you experience it for yourself … The app in question: Control Panel, more recently renamed as Settings. That might not sound like the most fascinating of apps to track across time,

Topics: app apple hardware history macintosh

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The best streaming deals: Three months of Audible is on sale for only $3, plus save on Disney+, Spotify and others

engadget.com Unknown 2026-02-03 05:05:35

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Whether you’re a true cord-cutter or you just want to watch the next season of Stranger Things when it drops, everyone’s on the lookout for streaming deals nowadays. Plenty have chosen VOD and live TV streaming services over traditional cable in recent years, but the savings that choic

Topics: bundle hulu month streaming tv

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I invested $50 in Bitcoin in 2022 - here's what it's worth now after a record rally

zdnet.com David Gewirtz 2026-02-03 05:55:00

ZDNET Welcome to Hot Bitcoin Summer, 2025 Edition. It's July 14, and Bitcoin is on fire. Turns out that when the President of the United States is bullish on a fake currency, it takes off. Then, when the US Congress declares "crypto week," cybercurrency speculators get that warm, squishy feeling that makes them think good things are about to happen in their imaginary world of bits as bucks. In honor of all of this and because my eyes popped when I checked my own investments this morning, I'm

Topics: bitcoin david investment value zdnet

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Self-imposed ban – a lightweight bash script to block commands

news.ycombinator.com Unknown 2026-01-30 08:28:53

Self-imposed ban A lightweight Bash script to help you block yourself from using time-wasting or distracting commands until a specified date with optional reasons and friendly reminders. Perfect for developers and terminal junkies trying to reclaim their focus. Install Simply download the ban script into your ~/bin directory or any directory in your $PATH and make it executable. mkdir -p ~ /bin curl -o ~ /bin/ban https://raw.githubusercontent.com/alex-moon/ban/refs/heads/main/ban chmod +x ~

Topics: ban bans bin directory steam

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Latest Tech News

Embedding user-defined indexes in Apache Parquet

James Gunn's 'Superman': Does It Have Post-Credits Scenes?

MLB Home Run Derby 2025: Participants, Format, Start Time and How to Watch Tonight for Free

Cognition, maker of the AI coding agent Devin, acquires Windsurf

Best Buy is restocking the Nintendo Switch 2 on July 17

I stopped buying ice after testing this smart cooler - and it's hit an all-time-low price

Meta CEO Zuckerberg says first AI data supercluster will come online in 2026

Evidence Grows That Tripping on Shrooms Might Increase Your Lifespan

Malicious VSCode extension in Cursor IDE led to $500K crypto theft

This sunrise alarm clock helped improve my sleep routine

Two guys hated using Comcast, so they built their own fiber ISP

Embedding User-Defined Indexes in Apache Parquet

Japanese Grandparents Create Life-Size Totoro with Bus Stop for Grandkids (2020)

Superheroes Are Spending 2025 in Their Reboot Eras

Humans Are Starting to Talk More Like ChatGPT, Study Claims

GM’s Final EV Battery Strategy Copies China’s Playbook: Super Cheap Cells

GM to challenge China’s LFP monopoly with upgraded battery factory

Xbox Ally X and Ally leaked prices make the Steam Deck sound like a steal

One of the most versatile cameras I've used is not from Sony or Canon and it's on sale

I invested $50 in Bitcoin in 2022 - here's what it's worth now after an eye-popping rally

NetBox Labs secures $35M as demand for network infrastructure management surges

Lenovo Legion Go S: Windows 11 vs. SteamOS Performance, and General Availability

Lightning Detector Circuits

Strategies for Fast Lexers

Look Inside the Cinematic Legacy of ‘Godzilla’ In This Stunning New Book

Every Best Buy store will have Nintendo Switch 2 consoles on July 17th

Explore 20 years of Mac UI design through emulations of a single app

The best streaming deals: Three months of Audible is on sale for only $3, plus save on Disney+, Spotify and others

I invested $50 in Bitcoin in 2022 - here's what it's worth now after a record rally

Self-imposed ban – a lightweight bash script to block commands

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